The artificial stone looks very lifelike, but still could identify the differences among artificial stone, natural color stone and dye color natural stone:

      1. artificial stone do not have the arrange level in vein, as it cannot be imitated.
      2. artificial stone the vein, color is the same, no various change
      3. artificial stone have the mark of the mold on the back.

      4. how to identify the dye color natural stone:
            a. the dye color is bright but not natural
            b. on the breakage area, could see the dye filter level
            c. dye color stone usually adopt the kind of stone that the quality is not good, the pore is big, high water absorbility, knock the stone and identify it by sound.

            d. Dye stone the luster usually is lower than natural stone color
            e. apply oil to increase the luster, so on the back of stone will oily
            f. stone applied with film, although the luster is high, but the film is not so strong enough, so easily worn, so under the light, scratch could be seen.
            g. the stone applied with wax to increase the luster, if use fire to bake, the wax will immediately be lost, and stone appear its original look.

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